num_layers));

        // current_layer_index Composite Attribute.
        mlir::StringAttr current_layer_str =
            builder.getStringAttr("layer_index");
        NamedAttribute current_layer_attr(
            current_layer_str,
            IntegerAttr::get(IntegerType::get(fn.getContext(), /*width=*/32),
                             current_layer_index++));

        projectsInLayers.eachWithIndex { projectsForLayer, layerIndex ->
            projectsForLayer.each { projectNumber ->
                def resolvedDependencies = []
                def startingLayer = Math.max(layerIndex - numLayersToDependOn, 0)
                if(startingLayer < layerIndex) {
                    def possibleDependencies = (startingLayer..<layerIndex).collect {
                        projectsInLayers[it]